Some people argue that sugar should be regulated, like alcohol and tobacco, on the grounds that it’s addictive and toxic. How much sense does that make? We hear from a regulatory advocate, an evidence-based skeptic, a former FDA commissioner — and the organizers of Milktoberfest.

By day, two leaders of Britain’s famous Nudge Unit use behavioral tricks to make better government policy. By night, they repurpose those tricks to improve their personal lives. They want to help you do the same.